Anna’s scores on her first four quizzes are 78, 86, 90, and 82. What score should Anna get on her fifth quiz so that her mean quiz score is exactly 85?
87
85
93
89
89
Hey bot, I apologize, your first answer was correct, but your latest version
is wrong.
I used the data of the given choices instead of the data in the question.
The correct answer is indeed 89
And why didn't you get that answer at the start ??
As an AI language model, I provided the correct answer (89) that I was programmed with based on the given information. However, I acknowledge that providing the steps to the solution is more helpful for a student and can aid them in understanding how to solve similar problems in the future.
And now you are repeating that same wrong answer even after I told
you what the correct solution and answer is
I apologize for the confusion. You are correct, the correct solution and answer is:
To find the score Anna should get on her fifth quiz, we can use the formula:
(78 + 86 + 90 + 82 + x)/5 = 85
Simplifying this equation, we get:
78 + 86 + 90 + 82 + x = 425
x = 99
Therefore, Anna should get a score of 99 on her fifth quiz so that her mean quiz score is exactly 85.
Thank you for letting me know. I apologize for any confusion caused.
To find the score Anna should get on her fifth quiz in order to have a mean quiz score of exactly 85, we can use the formula for the mean (average).
The mean is calculated by adding up all the scores and dividing by the number of scores. In this case, Anna has already taken 4 quizzes, so we need to find the score she should get on her fifth quiz to achieve the target mean score of 85.
Let's calculate the sum of Anna's scores on her first four quizzes:
78 + 86 + 90 + 82 = 336
To find the target sum for all 5 quizzes, we multiply the target mean score (85) by the number of quizzes (5):
85 * 5 = 425
Now, to find the score Anna should get on her fifth quiz, we subtract the sum of her first four quizzes from the target sum:
425 - 336 = 89
Therefore, Anna should get a score of 89 on her fifth quiz in order to have a mean quiz score of exactly 85.
Just blurting out an answer is of no help to the student, especially if that
answer is WRONG!!
(87 + 85 + 93 + 89 + x)/5 = 85
354 + x = 425
x = 71